Low Fees
this is not true anymore!
one of the reasons why I was using C-Cex was the fact that the bitcoin withdrawal fees were quite low. they used to be 20,000 satoshi and made trading and withdrawing easy and profitable but now (despite bitcoin fees be very low) C-Cex has increased it 10 times what it used to be up to 200,000 satoshi!
even with the biggest fee of 400 satoshi/byte the total fee of regular transactions are not bigger than 100,000 satoshi and this is while mempool is empty and fees are pretty low again. even as low as 10 s/B go through fast.